931 - Central control and process operators in processing and manufacturing
This sub-major group comprises central control and process operators in processing and manufacturing, including central control and process operators, mineral and metal processing; central control and process operators, petroleum, gas and chemical processing; and pulping, papermaking and coating control operators.
This minor group comprises central control and process operators in processing and manufacturing, including central control and process operators, mineral and metal processing; central control and process operators, petroleum, gas and chemical processing; and pulping, papermaking and coating control operators. They are employed by mineral ore and metal processing plants; petroleum and natural gas processing, pipeline and petrochemical companies; industrial, agricultural and specialty chemical and pharmaceutical companies; and pulp and paper companies.